:root {
  --bg: oklch(0.14 0.03 270);
  --fg: oklch(0.97 0.01 250);
  --muted: oklch(0.72 0.03 260);
  --card: oklch(0.19 0.035 268);
  --border: oklch(0.32 0.05 275 / 60%);
  --primary: oklch(0.82 0.15 210);
  --accent: oklch(0.65 0.22 300);
  --primary-fg: oklch(0.14 0.03 270);
  --radius: 0.875rem;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  background-image:
    radial-gradient(ellipse 60% 50% at 15% 0%, oklch(0.85 0.16 210 / 0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 20%, oklch(0.65 0.24 300 / 0.14), transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 100%, oklch(0.65 0.24 300 / 0.08), transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 0;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

.container { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }
.hidden { display: none !important; }

/* Icons */
.icon { width: 20px; height: 20px; display: inline-block; vertical-align: middle; flex-shrink: 0; }
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 28px; height: 28px; }
.lang-globe { color: var(--muted); margin: 0 0.25rem 0 0.5rem; }
.feat-i { color: var(--primary); filter: drop-shadow(0 0 6px color-mix(in oklch, var(--primary) 60%, transparent)); }
.tabs .tab { display: inline-flex; align-items: center; gap: 0.5rem; }
.btn { justify-content: center; }
.mobile-feats li svg { color: var(--primary); margin-top: 2px; }
.mobile-feats li::before { content: none; }
.store-badge { display: inline-flex; align-items: center; gap: 0.75rem; }
.store-badge svg { color: var(--fg); }
.personal-grid .p-ic {
  width: 32px; height: 32px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center;
  background: color-mix(in oklch, var(--primary) 15%, transparent); color: var(--primary); margin-bottom: 0.5rem;
}
.module .open svg { transition: transform 0.2s; }
.module:hover .open svg { transform: translateX(4px); }
.cat-icon svg { width: 22px; height: 22px; }
.personal-icon svg { width: 28px; height: 28px; color: var(--primary-fg); }

.bg-grid {
  position: fixed; inset: 0; z-index: 0; opacity: 0.4; pointer-events: none;
  background-image:
    linear-gradient(oklch(0.85 0.16 210 / 0.06) 1px, transparent 1px),
    linear-gradient(90deg, oklch(0.85 0.16 210 / 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at top, black, transparent 70%);
}

.gradient-text {
  background: linear-gradient(135deg, oklch(0.9 0.16 200), oklch(0.7 0.22 300));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* NAV */
.nav {
  position: relative; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1.5rem; padding-bottom: 1.5rem;
}
.logo { display: flex; align-items: center; gap: 0.5rem; }
.logo img { width: 40px; height: 40px; object-fit: contain; }
.logo-name { font-family: var(--font-display); font-weight: 600; font-size: 1.125rem; }
.logo-sub { color: var(--muted); font-size: 0.75rem; }
.nav-links { display: none; gap: 2rem; color: var(--muted); font-size: 0.875rem; }
.nav-links a:hover { color: var(--fg); }
.nav-right { display: flex; align-items: center; gap: 0.5rem; }
.lang-switch {
  display: flex; gap: 0.25rem; padding: 0.25rem;
  border: 1px solid var(--border); border-radius: 999px;
  background: color-mix(in oklch, var(--card) 60%, transparent);
  backdrop-filter: blur(8px);
}
.lang-switch button {
  padding: 0.25rem 0.625rem; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted);
  border-radius: 999px;
}
.lang-switch button.active {
  background: linear-gradient(135deg, oklch(0.85 0.16 210), oklch(0.65 0.24 300));
  color: var(--primary-fg);
}
.nav-cta {
  display: none; padding: 0.5rem 1rem; font-size: 0.875rem; border-radius: 999px;
  background: oklch(0.97 0.01 250 / 0.1); backdrop-filter: blur(8px);
}
.nav-cta:hover { background: oklch(0.97 0.01 250 / 0.2); }
@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-block; }
}

/* Pills / buttons */
.pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--card) 60%, transparent);
  color: var(--muted);
  padding: 0.25rem 0.75rem; font-size: 0.75rem; border-radius: 999px;
  backdrop-filter: blur(8px);
}
.pill-primary {
  border-color: color-mix(in oklch, var(--primary) 30%, transparent);
  background: color-mix(in oklch, var(--primary) 10%, transparent);
  color: var(--primary);
}
.pill .dot { width: 6px; height: 6px; background: var(--primary); border-radius: 999px; box-shadow: 0 0 12px var(--primary); }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: 999px; font-size: 0.875rem; font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, oklch(0.85 0.16 210), oklch(0.65 0.24 300));
  color: var(--primary-fg);
  box-shadow: 0 10px 30px -10px color-mix(in oklch, var(--accent) 60%, transparent);
}
.btn-primary:hover { box-shadow: 0 12px 40px -8px color-mix(in oklch, var(--accent) 80%, transparent); }
.btn-ghost {
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--card) 60%, transparent);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: var(--card); }

/* HERO */
.hero {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr; gap: 3rem;
  align-items: center; padding-top: 2rem; padding-bottom: 4rem;
}
@media (min-width: 768px) { .hero { grid-template-columns: 1fr 1fr; padding-top: 4rem; } }
.hero h1 { margin-top: 1.25rem; font-size: clamp(2.5rem, 5vw, 3.75rem); font-weight: 600; line-height: 1.05; }
.lead { margin-top: 1.25rem; max-width: 32rem; font-size: 1.125rem; color: var(--muted); }
.cta-row { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.hero-feats { margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 1.5rem; color: var(--muted); font-size: 0.875rem; }
.hero-feats > div { display: flex; align-items: center; gap: 0.5rem; }
.fdot { width: 8px; height: 8px; background: var(--primary); border-radius: 999px; box-shadow: 0 0 12px var(--primary); }

.hero-art { position: relative; display: flex; align-items: center; justify-content: center; min-height: 320px; }
.glow { position: absolute; border-radius: 999px; filter: blur(60px); }
.glow-a { width: 18rem; height: 18rem; background: color-mix(in oklch, var(--primary) 25%, transparent); }
.glow-b { width: 20rem; height: 20rem; background: color-mix(in oklch, var(--accent) 25%, transparent); }
.ring {
  position: absolute; width: 20rem; height: 20rem; border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--primary) 40%, transparent);
  animation: pulse-ring 3s ease-out infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}
.robot {
  position: relative; z-index: 2; width: 85%; max-width: 28rem;
  animation: float-y 6s ease-in-out infinite;
  filter: drop-shadow(0 20px 60px oklch(0.65 0.24 300 / 0.5));
}
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* SECTION */
.section { position: relative; z-index: 1; padding: 6rem 1.5rem; }
.section-head { text-align: center; margin-bottom: 2.5rem; }
.section-head h2 { margin-top: 1rem; font-size: clamp(2rem, 4vw, 3rem); font-weight: 600; }
.section-desc { max-width: 42rem; margin: 0.75rem auto 0; color: var(--muted); }

/* Tabs */
.tabs {
  margin: 0 auto 2.5rem; padding: 0.25rem; width: fit-content;
  display: flex; gap: 0.25rem;
  border: 1px solid var(--border); border-radius: 999px;
  background: color-mix(in oklch, var(--card) 60%, transparent);
  backdrop-filter: blur(8px);
}
.tab { padding: 0.625rem 1.5rem; font-size: 0.875rem; font-weight: 500; color: var(--muted); border-radius: 999px; transition: 0.2s; }
.tab.active {
  background: linear-gradient(135deg, oklch(0.85 0.16 210), oklch(0.65 0.24 300));
  color: var(--primary-fg);
  box-shadow: 0 10px 30px -10px color-mix(in oklch, var(--accent) 40%, transparent);
}
.tab:hover:not(.active) { color: var(--fg); }
.center-hint { text-align: center; color: var(--muted); font-size: 0.875rem; margin-bottom: 1.25rem; }

/* Cat grid */
.cat-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .cat-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .cat-grid { grid-template-columns: repeat(3, 1fr); } }
.cat {
  position: relative; overflow: hidden;
  padding: 1.25rem; text-align: left; border-radius: 1rem;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--card) 50%, transparent);
  transition: 0.2s;
  cursor: pointer;
}
.cat:hover { border-color: color-mix(in oklch, var(--primary) 40%, transparent); background: var(--card); }
.cat.active {
  border-color: color-mix(in oklch, var(--primary) 60%, transparent);
  background: linear-gradient(135deg,
    color-mix(in oklch, var(--primary) 10%, transparent),
    color-mix(in oklch, var(--card) 70%, transparent),
    color-mix(in oklch, var(--accent) 10%, transparent));
  box-shadow: 0 10px 30px -10px color-mix(in oklch, var(--accent) 20%, transparent);
}
.cat-head { display: flex; justify-content: space-between; align-items: flex-start; }
.cat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in oklch, var(--card) 100%, transparent); color: var(--primary);
  font-size: 1.25rem;
}
.cat.active .cat-icon {
  background: linear-gradient(135deg, oklch(0.85 0.16 210), oklch(0.65 0.24 300));
  color: var(--primary-fg);
}
.cat-check {
  width: 24px; height: 24px; border-radius: 999px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; color: transparent;
}
.cat.active .cat-check { background: var(--primary); border-color: var(--primary); color: var(--primary-fg); }
.cat h3 { margin-top: 1rem; font-size: 1.125rem; font-weight: 600; }
.cat p { margin-top: 0.375rem; font-size: 0.875rem; color: var(--muted); }
.cat-domains { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.375rem; font-size: 11px; }
.cat-domains .d1 { background: color-mix(in oklch, var(--primary) 10%, transparent); color: var(--primary); padding: 0.25rem 0.625rem; border-radius: 999px; }
.cat-domains .d2 { background: color-mix(in oklch, var(--accent) 15%, transparent); color: oklch(0.98 0.01 250 / 0.9); padding: 0.25rem 0.625rem; border-radius: 999px; }
.cat-subs { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: 0.375rem; }
.cat-subs span {
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--bg) 50%, transparent);
  color: var(--muted);
  padding: 0.25rem 0.5rem; font-size: 0.75rem; border-radius: 0.375rem;
}

.subs-box {
  margin-top: 2rem; padding: 1.5rem; border-radius: 1rem;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--card) 40%, transparent);
  backdrop-filter: blur(8px);
}
.subs-title { color: var(--muted); font-size: 0.875rem; margin-bottom: 0.75rem; }
.subs-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.subs-list span {
  border: 1px solid color-mix(in oklch, var(--primary) 25%, transparent);
  background: color-mix(in oklch, var(--primary) 5%, transparent);
  padding: 0.25rem 0.75rem; font-size: 0.75rem; border-radius: 999px;
}
.subs-list span em { color: var(--muted); font-style: normal; margin-right: 0.25rem; }
.subs-note { margin-top: 1rem; font-size: 0.75rem; color: var(--muted); }

/* Personal */
.personal-card {
  max-width: 48rem; margin: 0 auto; padding: 2rem; text-align: center;
  border: 1px solid var(--border); border-radius: 1rem;
  background: color-mix(in oklch, var(--card) 50%, transparent);
  backdrop-filter: blur(8px);
}
.personal-icon {
  width: 56px; height: 56px; margin: 0 auto; display: flex; align-items: center; justify-content: center;
  border-radius: 1rem; font-weight: 700;
  background: linear-gradient(135deg, oklch(0.85 0.16 210), oklch(0.65 0.24 300));
  color: var(--primary-fg);
}
.personal-card h3 { margin-top: 1.25rem; font-size: 1.5rem; font-weight: 600; }
.personal-card p { margin: 0.75rem auto 0; max-width: 36rem; color: var(--muted); }
.personal-grid { margin-top: 1.5rem; display: grid; grid-template-columns: 1fr; gap: 0.75rem; text-align: left; }
@media (min-width: 640px) { .personal-grid { grid-template-columns: repeat(3, 1fr); } }
.personal-grid > div {
  padding: 1rem; border: 1px solid var(--border); border-radius: 0.75rem;
  background: color-mix(in oklch, var(--bg) 40%, transparent);
}
.ph { font-size: 0.875rem; font-weight: 600; }
.pd { font-size: 0.75rem; color: var(--muted); }

/* Modules */
.modules-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .modules-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .modules-grid { grid-template-columns: repeat(3, 1fr); } }
.module {
  display: block; color: inherit; text-decoration: none; cursor: pointer;
  position: relative; overflow: hidden; padding: 1.5rem; border-radius: 1rem;
  background: linear-gradient(180deg, oklch(0.22 0.05 270 / 0.7), oklch(0.17 0.04 270 / 0.7));
  border: 1px solid oklch(0.4 0.08 280 / 0.5);
  box-shadow: 0 0 0 1px oklch(0.85 0.16 210 / 0.05), 0 20px 60px -20px oklch(0.65 0.24 300 / 0.35);
  transition: transform 0.2s;
}
.module:hover { transform: translateY(-4px); }
.module .halo {
  position: absolute; right: -2.5rem; top: -2.5rem; width: 8rem; height: 8rem;
  border-radius: 999px; opacity: 0.2; filter: blur(30px); transition: opacity 0.3s;
}
.module:hover .halo { opacity: 0.4; }
.module .tag { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--muted); }
.module .name { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; margin-top: 0.5rem; }
.module .open { display: flex; align-items: center; gap: 0.5rem; margin-top: 1rem; font-size: 0.875rem; color: var(--primary); }

/* Mobile section */
.mobile-card {
  overflow: hidden; padding: 2rem; border-radius: 1.5rem;
  background: linear-gradient(180deg, oklch(0.22 0.05 270 / 0.7), oklch(0.17 0.04 270 / 0.7));
  border: 1px solid oklch(0.4 0.08 280 / 0.5);
  box-shadow: 0 0 0 1px oklch(0.85 0.16 210 / 0.05), 0 20px 60px -20px oklch(0.65 0.24 300 / 0.35);
  display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center;
}
@media (min-width: 768px) { .mobile-card { padding: 3.5rem; grid-template-columns: 1fr 1fr; } }
.mobile-copy h2 { margin-top: 1rem; font-size: clamp(2rem, 4vw, 3rem); font-weight: 600; }
.mobile-copy p { margin-top: 1rem; color: var(--muted); }
.store-row { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.store-badge {
  padding: 0.75rem 1.25rem; border-radius: 1rem;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--bg) 60%, transparent);
  backdrop-filter: blur(8px);
}
.s-soon { font-size: 10px; text-transform: uppercase; letter-spacing: 0.15em; color: var(--muted); }
.s-name { font-size: 0.875rem; font-weight: 600; }
.mobile-feats { margin-top: 2rem; padding: 0; list-style: none; color: var(--muted); font-size: 0.875rem; }
.mobile-feats li { display: flex; align-items: flex-start; gap: 0.5rem; margin-top: 0.5rem; }
.mobile-feats li::before { content: "✓"; color: var(--primary); }
.mobile-art { position: relative; display: flex; align-items: center; justify-content: center; }
.mobile-art img { position: relative; width: 18rem; animation: float-y 6s ease-in-out infinite; }

/* Footer */
.footer { padding: 2.5rem 1.5rem; font-size: 0.875rem; color: var(--muted); }
.footer-inner { border-top: 1px solid var(--border); padding-top: 2rem; display: flex; flex-direction: column; gap: 1rem; align-items: center; justify-content: space-between; }
@media (min-width: 768px) { .footer-inner { flex-direction: row; } }
.footer-brand { display: flex; align-items: center; gap: 0.5rem; }
.footer-brand img { width: 28px; height: 28px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer-links a:hover { color: var(--fg); }

.signup-wrap { display:flex; justify-content:center; margin-top:1.25rem; }
#signup-btn:disabled { opacity:.45; cursor:not-allowed; filter:grayscale(.3); }